docs: def init_workers():
      """Waiting function, used to wake up the process pool"""
      setproctitle('oq-worker')
      # unregister raiseMasterKilled in oq-workers to avoid deadlock
      # since processes are terminated via pool.terminate()
      signal.signal(signal.SIGTERM, signal.SIG_DFL)
      # prctl is still useful (on Linux) to terminate all spawned processes
      # when master is killed via SIGKILL
      try:
          import prctl
      except ImportError:
          pass
      else:
          # if the parent dies, the children die
          prctl.set_pdeathsig(signal.SIGKILL)